Concrete mold



L. HARRIS.

CONCRETE MOLD. APPLICATION mm ocr. 21. ma

mam Aug. '22, 1.922

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L. HARRIS. CONCRETE MOLD.

APPLICATION FILED OCT. 2!. 1919. I 104256566. PatentedAug. 22, 1922.

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LEWIS HARRIS, 0F BENTON, ILLINOIS.

CONCRETE MOLD.

asses.

Specification of Letters Patent.

Patented Aug. 22, 1922.

Application filed October 21, 1919. Serial No. 332,129.

To (ZZZ whom it may concern:

. Be itknown that Lnwrs HARRIs, a citizen of the United Statesof America, residing at Benton. in the county of Franklin and State of Illinois, has invented new and useful Improvements in Concrete Molds, of which the following is a specification.

The object of the invention is to simplify and improve the formation of concrete or cement structures used in connection with buildings, such as garages, dwellings and the like, walls, parapets, culverts, etc., and particularly where metallic reenforcement is required or is desirable, and more especially to provide a forming or molding apparatus forthe purpose indicated wherein elements of the proposed permanent reenforcement of the finished structure constitute members of the forming apparatus or mold, to the end that the placement and removal of the latter are facilitated, the construction of the same is simplified, and the dimensions of the form particularly as to its transverse measurement, defining the thickness of a wall, is determined by the dimensions. of those elements of the reenforcement which enter into the construction of the mold or form, to the end that the selection of a reenforcement element of the required dimensions for a given reenforced concrete structure will determine the corresponding dimension of the mold or form to produce the same.

, With these and analogous objects in view as will appear in the course of the following description of a preferred embodiment of the invention, the same consists in a construction, combination and relation of parts shown in the accompanying drawing, wherein:

Figure 1 is a side view of a mold or form. Figure 2 is an edge view of a side wall section of the mold. 1 Figure 3 is a transverse section on the plane indicated by the line 33 of Figure 1. Figure 1 is a transverse section on the plane indicated by the line 41-4 of Figure 1.

Figure 5 is a section on the plane indicated by the line of Figure 1.

.Figure 6 is a section on the plane indicated by the line 6-6 Of\Flgl1I6 1.

Figure 7 is a detail view of one of the clamping knives.

Figure 8 is a detail section on the plane indicated by the line 8-8 of Figure 1.

Figure 9 is a plan view of the mold showing the reenforcing elements in position therein.

Figure 10 is a longitudinal section on the plane indicated by the line 101O of Figure 9.

Figures 11 and 12 are detail. views respectively of intermediate and transverse reenforcing elements.

Figure 18 is a perspective detail view showing one of the reenforcing plates which houses the latching means.

The mold or form consists essentially of side plates 20 adapted to be disposed at a transverse interval to determine the thickness of the wall to be produced and are secured at the predetermined interval by means of transverse reenforcing elements consisting of bars or rods 21 which may be corrugated as shown and are terminally engaged with the side walls and span the space therebetween. The side walls are adapted to be arranged in connected series, in end.

to end relation by means of detachable fastening devices consisting, for example, of hinge pins 22 at one end of each section of wall for engagement with half-hinge eye members 23 disposed at the other end of each section for interlocking engagement with the hinge pins on the adjacent end of the adjoining section as indicated in Figure 1. The engagement or interlocking of these terminal fastening elements disposes the inner surfaces of the wall sections 20 in a common plane, and obviously these wall sections may be of any preferred interior contour or configuration, to produce the desired wall surface (that is to say either plain or rough-faced) and may asshown be inwardly flanged as at 241 at their upper and lower edges to form pointing grooves or seams in the plane of the joints between courses of the wall blocks molded in the form.

In the construction illustrated the fastening means for the terminals of the transverse reenforcing elements 21 consist of clamping knives or slits 25 fitted in undercut or dovetail seats 26 formed in a reenforcing plate 27 which is secured to the exterior surface 1 of the wall section 20 and adapted for actuation by a cam 28 pivotally or axially mounted at 29 by means of a bolt or spindle extended to form a wrench seat or grip. 30, said clamping knives or slides having reduced edges 31 for cooperation with openings or seats 32 formed in the wall sections for the reception of the extremities of the transverse reenforcing elements 21. There fore to set up the mold or form the reenforc ing elements 21 should'beinserted'at one end in the seats provided for their reception;

in one of the wall sections of the mold and the cam should be turned to lock said terminals in place, this operation being con-.

tinued and the sections at :the .same side of the mold joined together in series by means of'the interlocking'fa-st'ening devices 22 and 23 until the required length has been provided, after which if no intermediate reenforcement is required'for the wall or continuous block to be molded, the opposite-side wall sections may be applied and locked to the other terminals of said transverse re enforcing elements to produce an arrangement similar to that indicated in Figure 9.

On't'he other handif it is desired to introduce intermediate reenforcing elements to extend longitudinally of the completed wall structure they 'may be located before the second or complementary wall section of the mold is positioned'as by employingdiagonal reenforcingelementsBiB shown in detail in Figure 11 andprovided with terminal eyes 34; for engagement with'said transverse reenforcing elements,and in addition supplemental perpendicular reenforcing elements 35 also having terminal eyes 36 may be engaged with said transversereenforcing elements'to produce a network-similar to that indicated inFigure '10, after which the concrete or cement in a plastic statemay be poured into the mold or form in the ordinary way. After the material'has become set to a sufficient firmness the side wall sections may be removed simply by unlocking them from the terminals of the transverse reenforcing elements whereupon they may be setup to form a superposed course upon that previously produced, the transverse reenforcingelement being left with the supplemental longitudinal reenforcing means embedded in the wall.

Qbviously the transverse distance between the inner faces of the wall-sections 20 determines the thickness of the wall to be formed,

cording to whether the finished product needs such additional reenforcement, and may be'used in one or more planesbetween the planes of the wall face surfacesas may be deemed necessary.

. Moreover as indicated in the drawings, the reenforcing elements may be extended beyond the planes of the upper and lower surfaces of the several courses formed respectively by the connected series of mold wall sections so as to afford a bond longitudinally between the courses of the completed wall,

. said knives and locking them in position'to engage the seated extremities of transverse wall reenforcing elements.

2; A mold or form for producing wall structures having a side wall section provided with openingsforming seats for the extremities of transverse wall reenforcing elements, a reenforcing plate disposed on the outer face of said wall section and formed with undercut or dovetailed seats, clamping knives having their side edges separated to correspond with said seats and movable into andout'of overlapping relation with said openings, and a pivotally mounted cam carried by said reenforcing plate and disposed between the adjacent edges of saidknives for actuating the same toengage'the extremities of the wall reenforcing elements projecting through said openings. 1

3. A mold or form for producing wall structures having a side wall section pro vided with openings forming seats for the extremities of transverse wall reenforcing elements, a reenforcing plate disposed on the outer face of said wall section and formed with undercut or dovetailed seats, clamping knives having their side edges separated to correspond with said seats and movable into and out of overlapping relation with said openings, and a pivotally mounted cam carried by said reenforcing plate and disposed between the adjacent edges of said knives for actuating the same to engage the extremities of the wall reen-. forclng elements pro ecting through said openings, said clamping knives having'reduced edges where they span said openings and engage said reenforcing element.' In'testimony whereof he affixes his signature.

' LEWIS HARRIS.- 

